/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.phoenix.repository.query.jql;

import javax.jcr.query.InvalidQueryException;


/**
 * Jigsaw server
 * 
 * @author    <a href="shamphone@gmail.com">Li XiongFeng</a>
 * @date      2012-4-22
 * @version   1.0.0
 */
public class WhereAST  extends JQLBaseAST{

	/**
	 * 
	 */
	private static final long serialVersionUID = -1090240334924160109L;

	@Override
	public String toJQL() {		
		return "WHERE "+super.toJQL();
	}

	/* (non-Javadoc)
	 * @see net.phoenix.repository.query.parser.JQLBaseAST#generateSQL(net.phoenix.repository.query.parser.JQLQuery)
	 */
	@Override
	public void generateSQL(JQL2SQL collector) throws InvalidQueryException{
		StringBuffer buffer = new StringBuffer();
		JQLBaseAST select = (JQLBaseAST)this.getFirstChild().getNextSibling();
		if(select!=null){
			select.generateSQL(collector);
			buffer.append(collector.pop());
		}
		buffer.append(" ");
		((JQLBaseAST)this.getFirstChild()).generateSQL(collector);
		buffer.append(collector.pop());
		buffer.insert(0, " WHERE ");
		collector.push(buffer.toString());
	}

}
